COPY 111. DNA Word Bank 112. PG193-199 CH10.1 summary 113. PG 200 CH10.1 Q+A 1-7 114. DNA Notes 115. DNA Gizmo

DNA

Chromosome Tightly coiled packaged bundle of DNA held together by histone proteins

Deoxyribonucleic acid Nucleic acids, phosphate sugars create a blueprint for genetic information (all the information to make you function)

What’s it made out of? (double stranded) 4 nucleic acid base pairs Guanine=Cytosine Adenine=Thymine

codon 3 nucleotide segment that translates to 1 amino acid (the help form genes to be expressed)

DNA does everything We preserve it by procreating with a mate. So important we replicate it So important we replicate it Sadly only half of our own DNA passes on to offspring

DNA replication Benefits: Clone of our information Reason: It’s time to replace and create a new cell in an organism

Replication steps DNA molecule separates (unwinds) between the strands

Proteins stabilize the strand for reconstruction

DNA polymerase attaches and begins to pair complementary nucleotides on the strand

How DNA Polymerase Copies DNA Leading strand -DNA strand is 3-5 -Created forward like a train Lagging strand -DNA strand 5-3 -Created like sewing, in a slow back stitched pattern